EP0667182A3 - Epurateur de gaz d'échappement et méthode pour la purification de gaz d'échappement. - Google Patents

Epurateur de gaz d'échappement et méthode pour la purification de gaz d'échappement. Download PDF

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Publication number
EP0667182A3
EP0667182A3 EP95300809A EP95300809A EP0667182A3 EP 0667182 A3 EP0667182 A3 EP 0667182A3 EP 95300809 A EP95300809 A EP 95300809A EP 95300809 A EP95300809 A EP 95300809A EP 0667182 A3 EP0667182 A3 EP 0667182A3
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
cleaning
cleaner
gas cleaner
cleaning exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP95300809A
Other languages
German (de)
English (en)
Other versions
EP0667182A2 (fr
Inventor
Naoko C O Kabushiki Kais Irite
Akira C O Kabushiki Kaisha Abe
Kiyohide C O Kabushiki Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Riken Corp
Original Assignee
Riken Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP6092962A external-priority patent/JPH07275709A/ja
Priority claimed from JP6329949A external-priority patent/JPH0838857A/ja
Priority claimed from JP6330018A external-priority patent/JPH0838858A/ja
Application filed by Riken Corp filed Critical Riken Corp
Publication of EP0667182A2 publication Critical patent/EP0667182A2/fr
Publication of EP0667182A3 publication Critical patent/EP0667182A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/48—Silver or gold
    • B01J23/50—Silver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/66—Silver or gold
    • B01J23/68—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/204—Carbon monoxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/21—Organic compounds not provided for in groups B01D2251/206 or B01D2251/208
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/104—Silver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/106—Gold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20723—Vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20776—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
EP95300809A 1994-02-10 1995-02-09 Epurateur de gaz d'échappement et méthode pour la purification de gaz d'échappement. Ceased EP0667182A3 (fr)

Applications Claiming Priority (16)

Application Number Priority Date Filing Date Title
JP3786094 1994-02-10
JP3787694 1994-02-10
JP37860/94 1994-02-10
JP37876/94 1994-02-10
JP92949/94 1994-04-06
JP9294994 1994-04-06
JP6092962A JPH07275709A (ja) 1994-04-06 1994-04-06 排ガス浄化材及び排ガス浄化方法
JP92962/94 1994-04-06
JP133586/94 1994-05-24
JP133602/94 1994-05-24
JP13360294 1994-05-24
JP13358694 1994-05-24
JP329949/94 1994-12-05
JP6329949A JPH0838857A (ja) 1994-02-10 1994-12-05 排ガス浄化材及び排ガス浄化方法
JP6330018A JPH0838858A (ja) 1994-02-10 1994-12-05 排ガス浄化材及び排ガス浄化方法
JP330018/94 1994-12-05

Publications (2)

Publication Number Publication Date
EP0667182A2 EP0667182A2 (fr) 1995-08-16
EP0667182A3 true EP0667182A3 (fr) 1995-10-18

Family

ID=27572221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95300809A Ceased EP0667182A3 (fr) 1994-02-10 1995-02-09 Epurateur de gaz d'échappement et méthode pour la purification de gaz d'échappement.

Country Status (2)

Country Link
US (2) US5670443A (fr)
EP (1) EP0667182A3 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738756B1 (fr) * 1995-09-20 1998-12-11 Rhone Poulenc Chimie Procede de traitement de gaz, a teneur elevee en oxygene en vue de la reduction des emissions des oxydes d'azote, utilisant une composition catalytique comprenant de l'oxyde de manganese et de l'oxyde de cerium et/ou de zirconium
EP0788829B1 (fr) * 1996-02-08 2004-09-22 Sakai Chemical Industry Co., Ltd., Catalyseur et méthode pour la réduction catalytique d'oxydes d'azote
US5876680A (en) * 1996-06-12 1999-03-02 Ford Global Technologies, Inc. Bimetallic tungsten/platinum catalysts for lean-burn emissions
GB9802504D0 (en) * 1998-02-06 1998-04-01 Johnson Matthey Plc Improvements in emission control
US8833062B1 (en) 2013-03-15 2014-09-16 Daimier Ag Catalytic reduction of NOx
US6074973A (en) * 1998-03-20 2000-06-13 Engelhard Corporation Catalyzed hydrocarbon trap material and method of making the same
US7084086B2 (en) * 2002-02-01 2006-08-01 Cataler Corporation Catalyst for purifying exhaust gases
US6946013B2 (en) * 2002-10-28 2005-09-20 Geo2 Technologies, Inc. Ceramic exhaust filter
CA2563802C (fr) * 2004-04-28 2011-01-04 Geo2 Technologies, Inc. Composites non-tisses et produits et procedes afferents
US20060166816A1 (en) * 2004-06-23 2006-07-27 Catalytic Solutions, Inc. Catalysts and processes for selective hydrogenation of acetylene and dienes in light olefin feedstreams
US7498009B2 (en) * 2004-08-16 2009-03-03 Dana Uv, Inc. Controlled spectrum ultraviolet radiation pollution control process
US20090065370A1 (en) * 2004-12-28 2009-03-12 Nair Balakrishnan G Ammonia gas sensor method and device
US8173574B2 (en) * 2006-09-20 2012-05-08 Basf Corporation Catalysts to reduce NOx in an exhaust gas stream and methods of preparation
US7943548B2 (en) * 2006-09-20 2011-05-17 Basf Corporation Catalysts to reduce NOx in an exhaust gas stream and methods of preparation
US7759280B2 (en) * 2006-09-20 2010-07-20 Basf Corporation Catalysts, systems and methods to reduce NOX in an exhaust gas stream
US8071504B2 (en) 2008-12-19 2011-12-06 Caterpillar Inc. Exhaust system having a gold-platinum group metal catalyst
WO2010088327A2 (fr) * 2009-01-30 2010-08-05 Basf Catalysts Llc Catalyseur permettant la production d'ammoniac à partir d'un hydrocarbure et d'oxydes d'azote
US8178064B2 (en) 2009-05-11 2012-05-15 Basf Corporation Treatment of power utilities exhaust
US8850802B1 (en) 2013-03-15 2014-10-07 Daimler Ag Catalytic reduction of NOx
CN105658329A (zh) 2013-10-23 2016-06-08 马自达汽车株式会社 尾气净化催化装置及尾气净化方法
JP6304099B2 (ja) * 2015-03-27 2018-04-04 トヨタ自動車株式会社 排ガス浄化触媒及びその製造方法
US9797287B2 (en) * 2015-10-16 2017-10-24 Southwest Research Institute Ruthenium based catalysts for NOx reduction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362960A2 (fr) * 1988-10-05 1990-04-11 Sakai Chemical Industry Co., Ltd., Emploi d'un catalyseur pour la dénitration et catalyseurs pour la dénitration
JPH04298235A (ja) * 1991-03-27 1992-10-22 Sekiyu Sangyo Kasseika Center 窒素酸化物接触還元用触媒
DE4128629A1 (de) * 1991-08-29 1993-03-04 Basf Ag Silberhaltiger traegerkatalysator und verfahren zur katalytischen zersetzung von distickstoffmonoxid
JPH05115788A (ja) * 1991-10-28 1993-05-14 Riken Corp 排ガス浄化材及び排ガス浄化方法
EP0577438A2 (fr) * 1992-07-03 1994-01-05 Kabushiki Kaisha Riken Dispositif et procédé pour la purification de gaz d'échappement

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956188A (en) * 1973-12-10 1976-05-11 Engelhard Minerals & Chemicals Corporation Compositions and methods for high temperature stable catalysts
JPS6310091A (ja) * 1986-06-30 1988-01-16 Toyoda Mach Works Ltd レ−ザ加工機における光軸確認装置
JPS6328372A (ja) * 1986-07-22 1988-02-06 Kokichi Yamamoto 茶碗蒸しの製造方法
DE3713169A1 (de) * 1987-04-17 1988-11-03 Bayer Ag Verfahren und vorrichtung zur reduktion von stickoxiden
JP2660411B2 (ja) * 1987-11-18 1997-10-08 トヨタ自動車株式会社 排気ガス中の窒素酸化物を還元除去する方法
DE4008371A1 (de) * 1989-03-15 1990-09-20 Riken Kk Abgasreiniger und verfahren zum reinigen von abgasen
EP0455491A3 (en) * 1990-05-03 1992-03-18 Sakai Chemical Industry Co., Ltd., Catalysts and methods for denitrization
DE69125649T2 (de) * 1990-05-28 1997-09-04 Agency Ind Science Techn Verfahren zum Entfernen von Stickoxiden aus Abgasen
DE4131954A1 (de) * 1990-09-25 1992-03-26 Riken Kk Abgasreiniger und verfahren zum reinigen von abgasen
DE69115241T2 (de) * 1991-01-08 1996-06-13 Agency Ind Science Techn Verfahren zur Entfernung von Stickoxiden aus Abgasen.
US5290530A (en) * 1991-05-31 1994-03-01 Kabushiki Kaisha Riken Method of cleaning exhaust gas
US5260043A (en) * 1991-08-01 1993-11-09 Air Products And Chemicals, Inc. Catalytic reduction of NOx and carbon monoxide using methane in the presence of oxygen
US5316991A (en) * 1991-11-08 1994-05-31 Ford Motor Company Exhaust treating system for lean-burn CNG engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0362960A2 (fr) * 1988-10-05 1990-04-11 Sakai Chemical Industry Co., Ltd., Emploi d'un catalyseur pour la dénitration et catalyseurs pour la dénitration
JPH04298235A (ja) * 1991-03-27 1992-10-22 Sekiyu Sangyo Kasseika Center 窒素酸化物接触還元用触媒
DE4128629A1 (de) * 1991-08-29 1993-03-04 Basf Ag Silberhaltiger traegerkatalysator und verfahren zur katalytischen zersetzung von distickstoffmonoxid
JPH05115788A (ja) * 1991-10-28 1993-05-14 Riken Corp 排ガス浄化材及び排ガス浄化方法
EP0577438A2 (fr) * 1992-07-03 1994-01-05 Kabushiki Kaisha Riken Dispositif et procédé pour la purification de gaz d'échappement

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 92-402137 *
DATABASE WPI Derwent World Patents Index; AN 93-190875 *

Also Published As

Publication number Publication date
US5670443A (en) 1997-09-23
US5744112A (en) 1998-04-28
EP0667182A2 (fr) 1995-08-16

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